/*
 * Copyright (C) 2008 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.greaze.definition;

import java.lang.reflect.Type;
import java.util.Map;

final class Util {
  private Util() { }

  public static boolean isAssignableFrom(Type typeOfValue, Type expectedType) {
    return typeOfValue.equals(expectedType);
  }

  public static String toStringMapKeys(Map<String, ?> map) {
    StringBuilder sb = new StringBuilder("[");
    boolean first = true;
    for (Map.Entry<String, ?> entry : map.entrySet()) {
      if (first) {
        first = false;
      } else {
        sb.append(",");
      }
      sb.append(entry.getKey());
    }
    sb.append("]");
    return sb.toString();
  }

  public static String toStringMapOfTypes(Map<String, Type> map) {
    StringBuilder sb = new StringBuilder("[");
    boolean first = true;
    for (Map.Entry<String, ?> entry : map.entrySet()) {
      if (first) {
        first = false;
      } else {
        sb.append(",");
      }
      sb.append(entry.getKey()).append(":");
      Class<?> clazz = (Class<?>) entry.getValue();
      sb.append(clazz.getSimpleName());
    }
    sb.append("]");
    return sb.toString();
  }

  public static String toStringMap(Map<String, Object> map) {
    StringBuilder sb = new StringBuilder("[");
    boolean first = true;
    for (Map.Entry<String, ?> entry : map.entrySet()) {
      if (first) {
        first = false;
      } else {
        sb.append(",");
      }
      sb.append(entry.getKey()).append(":").append(entry.getValue());
    }
    sb.append("]");
    return sb.toString();
  }
}
